Collapsible copying apparatus for photographic purposes



Dec. 6, 1927.

A. HEYER COLLAPSIBLE COPYING APPARATUS FOR PHOTOGRAPHIC PURPOSES Filed Jan. 25, 1927 for.

20 form supporting feet thereon.

Patented Dec. 6, 1927.

UNITED STATES, PATENT OFFICE- ARTHUR HEYER, F BAD LAUSICK, GERMANY.

COLLAPSIBLE COPYING APPARATUS FOR PHOTOGRAPHIC PURPOSES.

Application filed January 25, 1927, Serial-N0. 163,407, and in Germany November 3, 1926.

' This invention relates to an improved collapsible copying apparatus for photographic purposes, which is illustrated on the accompanying drawing, in which:

Fig. 1 is a perspective view of the same in its position of use, Fig. 2 is a side view thereof in its collapsed position, and Fig. 3 shows a detail thereof on a larger scale.

The improved collapsible copying apparam tus comprises a copying frame a of the con ventional type, to the lateral ends of which.

two U-shaped straps b, 0 of flat iron are pivoted at their open ends, which straps in their unfolded position serve to support the frame a (Fig. 1). while in their collapsed position they bear uponthe side walls of said frame (Fig. 2). The free ends I)", 0" of said straps I), 0 project somewhat beyond me transverse members 6, 0 thereof so as to Stays d, d pivoted to one strap and adapted to be fastened to the other strap by means of a cotter, screw, or the like, serve to strengthen thesupport at its lower end in its unfolded position.

A glow-lamp 6 with, footlike socket 7 serves as a light source for the apparatus, the conduit 7 thereof having a two-pin Wall plug 9 at its free end and a switch [2. inserted therein, said switch being detachably fastened to one of the members, for instance a as shown, of the support.

A bag 2 of flexible, light-impermeable'fabric depends from the underside of the frame a and serves to receive in its open but closable lower end the glow-lamp e, which thus projects its light toward the negative in the frame a to be copied.

Of course, the glow-lamp may also be coI1- nected with an electric battery, while furthermore a plurality of glow-lamps may be used, to suit requirements.

The improved apparatus has the advantage that it can be easily carried along, while it takes little room only during its transportation, as well as during its storage in its collapsed position.

What I claim, is

1. In a collapsible copying apparatus for photographic purposes, the combinationv with a copying frame. of conventional type, of two U-shaped supports pivoted at the r open ends to the lateral ends of said frame and adapted to be folded upon the latter, and pivotal stays at the lower end of one support adapted to be fastened to the lower end of the other support in the unfolded position of use of said supports.

2. In an apparatus as specified in claim 1, a bag of flexible, light-impermeable fabric depending from the underside of said frame and having an open but closable lower end.

3. In an apparatus as specified in claim 1,

a bag of flexible, light-impermeable fabric depending from the underside ofsaid frame and having an open but closable lower end,

and an electric l1 enclosed by said bag within the closed lower end thereof.

In testimony whereof I have hereunto set my hand.

ght source adapted to be ARTHUR HE YER. 

